Most water in the ear will work its way out without intervention. Because it can interfere with the body's natural defenses, an outer ear infection could occur and then you would need treatment, which may include topical antibiotics so watch for pain, redness, discharge, blood (in case of ear drum rupture).

In the meantime and in the absence of infection, patience is the best medicine. It will feel "weird" but probably will be short-lived. If not, see your doctor.